Tonight's 'Grey's Anatomy' Episode Will Be Titled '1-800-799-7233' for This Important Reason

As longtime fans of Grey's Anatomy know, music is almost as much a part of the show as the hospital formerly known as Seattle Grace. If you're anything like me, you can name the song that was playing during the most emotional moments. There's "Breathe (2 AM)" as Meredith is about to take a live grenade out of someone's chest or when Cristina and Mer danced it out one last time to Tegan and Sara. And, of course, there's the iconic scene set to "Chasing Cars" after Denny died in season two.

What it might take people a moment to realize, though, is that every episode title over all these years is pulled from a song. The pilot? "A Hard Day's Night." The aforementioned two-parter with a bomb in a body? "It's the End of the World As We Know It" and "And I Feel Fine." An episode just last November name-checks Hamilton with "Who Lives, Who Dies, Who Tells Your Story." But that streak ends tonight—and for a very powerful reason.

At the end of the winter finale, we were left with a cliffhanger that saw Jo's (Camilla Luddington) abusive ex-husband (played by Glee's Matthew Morrison) show up at the hospital to confront her. She's gone to enormous lengths to stay away from this dangerous man, going so far as to change her identity. Tonight's episode will continue that story—and because of this, the original title, "Four Seasons in One Day," has been changed to "1-800-799-7233," the actual phone number for the National Domestic Violence Hotline.

"Krista [Vernoff], and myself and all the writers, because it’s been such a long time coming, there have been so many conversations with domestic abuse organizations," Luddington explained in an interview with Entertainment Weekly. "We ended up feeling like even just the words and the dialogue that we wanted to use in several scenes, we were just particular with it, because at the end of the day, we wanted to tell this story right, and also educate people that have misconceptions about domestic abuse, who it happens to, and what it looks like. Conversations have been going on for a very, very long time in order to tell this story the right way that we felt like got the message across that we needed to get across with it."